Temperature dependence of the magnetic properties in LaMnO_(3+δ) [PDF]
Data are presented on the thermal dependence of the hysteretic properties of cationic vacancies including manganite samples of composition LaMnO_(3+δ)(δ=0.05 and 0.12). Our results evidence the presence in both samples of two magnetic phases having ferro-
Arroyo, A. +7 more
core +2 more sources
Estudio longitudinal sobre la construcción de conceptos Enlace, solubilidad y conductividad
La finalidad central de este estudio se orienta hacia la búsqueda de las concepciones previas de los estudiantes de licenciatura en Química de la Facultad de Química de la UNAM, acerca de conceptos cuya adquisición resulta indispensable para comprender ...
Ana E. Domínguez +3 more
doaj +1 more source
Introdução: Nos últimos anos, as resinas compostas têm sido melhoradas em termos tecnológicos, permitindo o alcance de melhores prognósticos na medicina dentária.
Rita Fidalgo-Pereira +5 more
doaj +1 more source
SOLID STATE MORPHOLOGY AND SIZE TUNING OF NANOSTRUCTURED PLATINUM USING MACROMOLECULAR COMPLEXES [PDF]
Indexación: Web of Science; Scielo.The macromolecular complexes Chitosan●(PtCl2)n and PSP-co-4-PVP●(PtCl2)n, were prepared from the respective polymer and PtCl2 in metal:polymer molar ratios 1:1 and 1:5. Pyrolisis of the macromolecular complexes Chitosan●
BAEZ, RODRIGO +3 more
core +2 more sources
Recursos per treballar a l’aula la formulació i nomenclatura de química inorgànica
L’article presenta diversos recursos i activitats elaborats per l’autor que permeten treballar la formulació i nomenclatura de química inorgànica a les classes de química d’educació secundària i de batxillerat, seguint les darreres recomanacions ...
José Ángel Hernández Santadaríao
doaj +1 more source
On the use of diatomite as antishrinkage additive in the preparation of monolithic carbon aerogels [PDF]
We have synthesized flexible monolithic carbon aerogels by incorporating diatomite as antishrinkage agent during the sol-gel polycondensation of the precursors.
García, T.E. +6 more
core +1 more source
A new Cd(II) complex with the ligand 4′-chloro-2,2′6′,2′′-terpyridine (Cltpy), [Cd(Cltpy)(I)2], has been synthesized and characterized by CHN elemental analysis, 1H-NMR, 13C-NMR, and IR spectroscopy and structurally analyzed by X-ray single-crystal ...
L. A. Saghatforoush +3 more
doaj +1 more source
3-Allyl-6-bromo-1H-imidazo[4,5-b]pyridin-2(3H)-one [PDF]
In the title compound, C15H14N2O4, (I), the molecule lies on a twofold rotation axis which passes through the central C atom of the aliphatic chain, giving one half-molecule per asymmetric unit.
Bolte, Michael +4 more
core +3 more sources
Thermally induced interconversions of metal-pyrimidine-4,6-dicarboxylate polymers: A structural, spectroscopic, and magnetic study [PDF]
Continuing our work on the structural and magnetic aspects of the one-dimensional (1-D) coordination polymers of the [M(pmdc)(H2O)2]\ub7H2O kind (M Fe, Co, Ni, Cu, Zn; pmdc pyrimidine-4,6-dicarboxylate), we have combined ab initio X-ray powder ...
Barea, Elisa +10 more
core +1 more source
A preliminary study on electrocatalytic reduction of CO2 using FAC-ReI(CO)3(4,4′-dimethyl-2,2′-bipyridyl)((E)-2-((3-amino-pyridin-4-ylimino)-methyl)-4,6-DI-tert-butylphenol))+ complex [PDF]
Indexación: Scopus.Several research to explore the possible conversion of CO2 using rhenium(I) tricarbonyl complexes have been reported the last years.
Canales, J.C. +4 more
core

